Function Test
Start engine to supply vacuum to actuator diaphragm. On all models, observe actuator arm when battery voltage is applied across specified terminals of actuator connector. See ACTUATOR FUNCTION TEST . SeeFigure . If actuator arm does not function as specified, replace actuator.
ACTUATOR FUNCTION TEST
| Application | Actuator Arm Result |
|---|---|
| Apply 12 Volts To Pin "C" & Ground Pins "A", "B" & "D" | Pull |
| Apply 12 Volts To Pin "C" & Ground Pins "A" & "D" | Hold |
| Apply 12 Volts To Pin "C" & Ground Pin "A" | Extend |
| Disconnect All Voltage & Ground | Release |